jsp中的forward

1、servlet中实现forward的跳转代码如下：

    request.getRequestDispatcher("test2.jsp").forward(request, response);

getRequestDispatcher()中参数是转向的地址，forward()中的参数就是request, response，实现的效果和<jsp:forward>一样

2、servlet中的代码：

import java.io.IOException;

import javax.servlet.ServletException;

import javax.servlet.annotation.WebServlet;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

@WebServlet("/Test")

public class Test extends HttpServlet {

private static final long serialVersionUID = 1L;

    public Test() {

        super();

    }

protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

request.getRequestDispatcher("test2.jsp").forward(request, response);

}

protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

doGet(request, response);

}

}